Hollywood couple Alicia Vikander and Michael Fassbender seemed blissfully in love as they stepped out together in Stockholm earlier this week.

The couple notoriously private couple enjoyed a romantic getaway in the Swedish capital to celebrate Vikander's 32nd birthday.

Alicia and Michael have lived in Lisbon and Portugal, since marrying three years ago.

When the pictures emerged of the pair going for their romantic stroll, fans were convinced that the Oscar-winning actress is pregnant.

Alicia covered up her supposed pregnancy bump with a baggy grey sweatshirt, which she layered with a Louis Vuitton shearling jacket.

Fans of the Tomb Raider star speculated on Twitter about a possibility of a baby Fassbender.

"I'll eat my hat if she's [Vikander] is not pregnant!" one tweet read.

"mark my words : miss alicia vikander is pregnant," another comment declared.

"hope these latest rumors about Alicia Vikander being pregnant with Michael Fassbender's baby are true," a hopeful tweet read.

Alicia was certainly glowing, as she went make-up free, while keeping her brunette locks swept back off her face into a bun.

Meanwhile, Marvel star Michael went casual in a navy sweatshirt with a pair of dark trousers and trainers.

Related: Here's Why Michael Fassbender And Alicia Vikander Are Hollywood's Top Couple

Oscar-winning Vikander and Oscar nominee Fassbender met when they starred together in the romantic drama The Light Between Oceans, released in 2016.

They later married in Ibiza in 2017.

Fassbender told the Irish Independent in 2015 that he admired his then girlfriend as an actress.

"When she arrived on the set, I could see the determination there and the focus, the hard work and then trying to keep it up all the time," he said.

"She's a very good actor, disciplined...she works hard and gives great performances."

In an interview for the October edition of Elle Magazine, Alicia recently revealed that she would love to work with her husband in a film again.

Related: Everything Lara Croft's Alicia Vikander Does To Stay In Shape

She said: "I would love to work with him one day, but we're very much individuals, which I love and I think is good in any relationship."

"We both take on parts because it's a film that is right for us, so it would have to be the same if we were ever to work together again."

Alicia is next set to star alongside Julianne Moore in The Glorias, a biopic about US feminist icon Julia Steinem, which is out in the UK in January.

Next: Emma Stone And Tomb Raider's Alicia Vikander Star In The New Louis Vuitton Campaign